8872489 has 6 divisors (see below), whose sum is σ = 9120174. Its totient is φ = 8631360.

The previous prime is 8872483. The next prime is 8872537. The reversal of 8872489 is 9842788.

It can be written as a sum of positive squares in 3 ways, for example, as 7246864 + 1625625 = 2692^2 + 1275^2 .

It is not a de Polignac number, because 8872489 - 2³ = 8872481 is a prime.

It is a super-2 number, since 2×8872489² = 157442122110242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8872481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1872 + ... + 4609.

It is an arithmetic number, because the mean of its divisors is an integer number (1520029).

Almost surely, 2^8872489 is an apocalyptic number.

It is an amenable number.

8872489 is a deficient number, since it is larger than the sum of its proper divisors (247685).

8872489 is an equidigital number, since it uses as much as digits as its factorization.

8872489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6555 (or 6518 counting only the distinct ones).

The product of its digits is 258048, while the sum is 46.

The square root of 8872489 is about 2978.6723552617. The cubic root of 8872489 is about 207.0213596324.

Subtracting 8872489 from its reverse (9842788), we obtain a cube (970299 = 99³).

The spelling of 8872489 in words is "eight million, eight hundred seventy-two thousand, four hundred eighty-nine".